WMMX Arithmetic Intrinsics

9/7/2007

The intrinsics listed in the following table perform packed arithmetic operations.

Intrinsic name	Operation	WMMX Instruction	Argument and result values/bits
_mm_add_pi16	Adds	WADDH	4/16, 4/16
_mm_add_pi32	Adds	WADDW	2/32, 2/32
_mm_add_pi8	Adds	WADDB	8/8, 8/8
_mm_adds_pi16	Adds, signed	WADDHSS	4/16, 4/16
_mm_adds_pi32	Adds, signed	WADDWSS	2/32, 2/32
_mm_adds_pi8	Adds, signed	WADDBSS	8/8, 8/8
_mm_adds_pu16	Adds	WADDHUS	4/16, 4/16
_mm_adds_pu32	Adds	WADDWUS	2/32, 2/32
_mm_adds_pu8	Adds	WADDBUS	8/8, 8/8
_mm_sub_pi16	Subtracts	WSUBH	4/16, 4/16
_mm_sub_pi32	Subtracts	WSUBW	2/32, 2/32
_mm_sub_pi8	Subtracts	WSUBB	8/8, 8/8
_mm_subs_pi16	Subtracts, signed	WSUBHSS	4/16, 4/16
_mm_subs_pi32	Subtracts, signed	WSUBWSS	2/32, 2/32
_mm_subs_pi8	Subtracts, signed	WSUBBSS	8/8, 8/8
_mm_subs_pu16	Subtracts	WSUBHS	4/16, 4/16
_mm_subs_pu32	Subtracts	WSUBWSS	2/32, 2/32
_mm_subs_pu8	Subtracts	WSUBBUS	8/8, 8/8
_mm_madd_pi16	Multiplies	WMADDS	4/16, 2/32
_mm_madd_pu16	Multiplies	WMADDU	4/16, 2/32
_mm_mulhi_pi16	Multiplies, signed	WMULSH	4/16, 4/16 (high)
_mm_mulhi_pu16	Multiplies, signed	WMULUH	4/16, 4/16 (high)
_mm_mullo_pi16	Multiplies	WMULSL/WMULUL	4/16, 4/16 (low)
_mm_mac_pi16	Multiply-accumulate, signed	WMACS	4/16, 4/16
_mm_mac_pu16	Multiply-accumulate	WMACU	4/16, 4/16
_mm_macz_pi16	Multiply-accumulate, signed	WMACSZ	4/16, 4/16
_mm_macz_pu16	Multiply-accumulate	WMACUZ	4/16, 4/16
_mm_acc_pu16	Accumulate	WACCH	4/16, 1/16
_mm_acc_pu32	Accumulate	WACCW	2/32. 2/32
_mm_acc_pu8	Accumulate	WACCB	8/8, 1/8
_mm_mia_si64	Multiply-accumulate, signed	TMIA	1/64
_mm_miabb_si64	Multiply-accumulate, signed	TMIABB	1/64
_mm_miabt_si64	Multiply-accumulate, signed	TMIABT	1/64
_mm_miaph_si64	Multiply-accumulate, signed	TMIAPH	1/64
_mm_miatb_si64	Multiply-accumulate, signed	TMIATB	1/64
_mm_miatt_si64	Multiply-accumulate, signed	TMIATT	1/64

See Also

Other Resources

WMMX Intrinsic Functions